The AMD Athlon II X4 651K was a desktop processor with 4 cores, launched in November 2011. It is part of the Athlon II X4 lineup, using the Llano architecture with Socket FM1. Athlon II X4 651K has 1 MB of L2 cache per core and operates at 3 GHz. AMD is making the Athlon II X4 651K on a 32 nm production node using 1,178 million transistors. The silicon die of the chip is not fabricated at AMD, but at the foundry of GlobalFoundries. You may freely adjust the unlocked multiplier on Athlon II X4 651K, which simplifies overclocking greatly, as you can easily dial in any overclocking frequency.
With a TDP of 100 W, the Athlon II X4 651K consumes a good deal of power, so decent cooling is needed. AMD's processor supports DDR3 memory with a dual-channel interface. For communication with other components in the system, Athlon II X4 651K uses a PCI-Express Gen 2 connection. This processor does not have integrated graphics, you will need a separate graphics card.
Hardware virtualization is available on the Athlon II X4 651K, which greatly improves virtual machine performance.